This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 7 |
4 | 106 |
5 | 2590 |
6 | 89500 |
7 | 4061830 |
8 | 230971450 |
9 | 15931539370 |
10 | 1301850919000 |
11 | 123784442479000 |
12 | 13503177242345500 |
13 | 1670758163868804100 |
14 | 232275860883184444000 |
15 | 35996619826480459259200 |
16 | 6176482540368771725898700 |
17 | 1166516670494844414929980300 |
18 | 241253958437270751756621102400 |